Structure and properties variations in Zn1-xCoxO nanorods prepared by microwave-assisted hydrothermal method

被引：15

作者：

Fang, M. ^{[1
]}

Liu, Z. W. ^{[1
]}

机构：

[1] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China

来源：

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2017年 / 57卷

关键词：

ZnO; Co-doped ZnO; Microwave-assisted hydrothermal method; Band gap; Magnetism; MAGNETIC-PROPERTIES; DOPED ZNO; OPTICAL-PROPERTIES; DOPING CONCENTRATION; SPRAY-PYROLYSIS; THIN-FILMS; CO; GROWTH; TEMPERATURE;

D O I：

10.1016/j.mssp.2016.10.041

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

ZnO and Co-doped ZnO nanopowders were synthesized by microwave-assisted hydrothermal method. The composition dependent morphology, structure, optical, and magnetic properties were systematically investigated. Self-assembly of nanoflower structure was obtained for ZnO nanorods without doping, but Co doping led to the disappearance of nanoflower feature. Structural and properties characterizations indicated that Co was incorporated into the Zn-site of ZnO lattice without formation of second phase. The intensity of photoluminescence spectrum decreased with Co doping although all samples showed blue emission. Co doping also led to a red shift in band gap due to sp-d exchange interaction between the band electrons and the localized electrons of Co2+ cations. In addition, the room-temperature ferromagnetism could be modified by the doping amount of Co.

引用

页码：233 / 238

页数：6

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